1 files changed, 139 insertions, 0 deletions

diff --git a/arch/mips/ite-boards/generic/puts.c b/arch/mips/ite-boards/generic/puts.c
new file mode 100644
index 000000000000..20b02df6b414
--- /dev/null
+++ b/arch/mips/ite-boards/generic/puts.c
@@ -0,0 +1,139 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *      Low level uart routines to directly access a 16550 uart.
+ *
+ * Copyright 2000,2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ppopov@mvista.com or source@mvista.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+
+#define SERIAL_BASE   0xB4011800        /* it8172 */
+#define SER_CMD       5
+#define SER_DATA      0x00
+#define TX_BUSY       0x20
+
+#define TIMEOUT       0xffff
+#undef SLOW_DOWN
+
+static const char digits[16] = "0123456789abcdef";
+static volatile unsigned char *const com1 = (unsigned char *) SERIAL_BASE;
+
+
+#ifdef SLOW_DOWN
+static inline void slow_down()
+{
+        int k;
+        for (k = 0; k < 10000; k++);
+}
+#else
+#define slow_down()
+#endif
+
+void putch(const unsigned char c)
+{
+        unsigned char ch;
+        int i = 0;
+
+        do {
+                ch = com1[SER_CMD];
+                slow_down();
+                i++;
+                if (i > TIMEOUT) {
+                        break;
+                }
+        } while (0 == (ch & TX_BUSY));
+        com1[SER_DATA] = c;
+}
+
+void puts(unsigned char *cp)
+{
+        unsigned char ch;
+        int i = 0;
+
+        while (*cp) {
+                do {
+                        ch = com1[SER_CMD];
+                        slow_down();
+                        i++;
+                        if (i > TIMEOUT) {
+                                break;
+                        }
+                } while (0 == (ch & TX_BUSY));
+                com1[SER_DATA] = *cp++;
+        }
+        putch('\r');
+        putch('\n');
+}
+
+void fputs(unsigned char *cp)
+{
+        unsigned char ch;
+        int i = 0;
+
+        while (*cp) {
+
+                do {
+                        ch = com1[SER_CMD];
+                        slow_down();
+                        i++;
+                        if (i > TIMEOUT) {
+                                break;
+                        }
+                } while (0 == (ch & TX_BUSY));
+                com1[SER_DATA] = *cp++;
+        }
+}
+
+
+void put64(uint64_t ul)
+{
+        int cnt;
+        unsigned ch;
+
+        cnt = 16;               /* 16 nibbles in a 64 bit long */
+        putch('0');
+        putch('x');
+        do {
+                cnt--;
+                ch = (unsigned char) (ul >> cnt * 4) & 0x0F;
+                putch(digits[ch]);
+        } while (cnt > 0);
+}
+
+void put32(unsigned u)
+{
+        int cnt;
+        unsigned ch;
+
+        cnt = 8;                /* 8 nibbles in a 32 bit long */
+        putch('0');
+        putch('x');
+        do {
+                cnt--;
+                ch = (unsigned char) (u >> cnt * 4) & 0x0F;
+                putch(digits[ch]);
+        } while (cnt > 0);
+}